Standing Balance and Spatiotemporal Aspects of Gait Are Impaired Upon Nocturnal Awakening in Healthy Late Middle-Aged and Older Adults
| Autor: | Courtney D. Hall, Ronald A. Schuchard, Raymond P. Najjar, Cheng-Ann Wang, Amanda L McBean, Ban Ku, Jamie M. Zeitzer |
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| Rok vydání: | 2016 |
| Předmět: |
Pulmonary and Respiratory Medicine
Male medicine.medical_specialty Nocturnal 03 medical and health sciences 0302 clinical medicine Gait (human) Physical medicine and rehabilitation 030502 gerontology medicine Nocturia Humans 030212 general & internal medicine Wakefulness Gait Geriatric Assessment Postural Balance Lighting Balance (ability) Aged business.industry Middle Aged Scientific Investigations Standing balance Neurology Space Perception Time Perception Accidental Falls Female Neurology (clinical) medicine.symptom 0305 other medical science business |
| Zdroj: | Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine. 12(11) |
| ISSN: | 1550-9397 |
| Popis: | Nocturnal awakenings may constitute a unique risk for falls among older adults. We describe differences in gait and balance between presleep and midsleep testing, and whether changes in the lighting environment during the midsleep testing further affect gait and balance.Twenty-one healthy, late middle-aged and older (64.7 ± 8.0 y) adults participated in this repeated-measures design consisting of four overnight laboratory stays. Each night, participants completed baseline visual acuity, gait, and balance testing. After a 2-h sleep opportunity, they were awakened for 13 min into one of four lighting conditions: very dim white light (0.5 lux); dim white light (∼28.0 lux); dim orange light (∼28.0 lux); and white room-level light (∼200 lux). During this awakening, participants completed the same sequence of testing as at baseline.Low-contrast visual acuity significantly decreased with decreasing illuminance conditions (Balance and gait are impaired during midsleep awakenings among healthy, late middle-aged and older adults. This impairment is not ameliorated by exposure to room lighting, when compared to dim lights. |
| Databáze: | OpenAIRE |
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